EP 3007398 A4 20170125 - TRANSMISSION CIRCUIT
Title (en)
TRANSMISSION CIRCUIT
Title (de)
ÜBERTRAGUNGSSCHALTUNG
Title (fr)
CIRCUIT DE TRANSMISSION
Publication
Application
Priority
- JP 2013115437 A 20130531
- JP 2014063200 W 20140519
Abstract (en)
[origin: EP3007398A1] The transmission circuit includes a comparator that converts a phase-modulated signal from an orthogonal modulator into a pulse signal so as to use the pulse signal as the sampling clock of the a delta-sigma modulator, and an asynchronous clock transfer unit and an interpolating circuit, disposed between a circuit operating based on the baseband clock and the delta-sigma modulator. The asynchronous clock transfer unit converts the amplitude component signal synchronized with the baseband clock, into an amplitude component signal synchronized with an N-frequency divided clock obtained by dividing the frequency of the sampling clock by N. The interpolating circuit interpolates the output signal from the asynchronous clock transfer unit so that the amount of change of one sample in the N-frequency divided clock becomes equal to the amount of change of one sample in the sampling clock.
IPC 8 full level
H04L 27/32 (2006.01); H03F 3/217 (2006.01); H03M 3/02 (2006.01); H04L 27/20 (2006.01); H04L 27/36 (2006.01)
CPC (source: EP US)
H03F 3/2175 (2013.01 - EP US); H04L 27/2092 (2013.01 - US); H04L 27/361 (2013.01 - EP US); H03F 2200/331 (2013.01 - EP US)
Citation (search report)
- [A] EP 2518901 A1 20121031 - NEC CORP [JP]
- [A] WO 2013035523 A1 20130314 - NEC CORP [JP], et al
- [A] US 2010111222 A1 20100506 - SCHIMPER MARKUS [DE], et al
- [A] SHINICHI HORI ET AL: "A 0.3 3GHz reconfigurable digital transmitter with multi-bit envelope modulator using phase modulated carrier clock for wireless sensor networks", 2012 IEEE RADIO FREQUENCY INTEGRATED CIRCUITS SYMPOSIUM (RFIC); ?MONTREAL, QC, CANADA; 17-19 JUNE 2012, IEEE, PISCATAWAY, NJ, USA, 17 June 2012 (2012-06-17), pages 105 - 108, XP032203315, ISBN: 978-1-4673-0413-9, DOI: 10.1109/RFIC.2012.6242242
- See references of WO 2014192574A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3007398 A1 20160413; EP 3007398 A4 20170125; JP 6090441 B2 20170308; JP WO2014192574 A1 20170223; US 2016127162 A1 20160505; US 9584349 B2 20170228; WO 2014192574 A1 20141204
DOCDB simple family (application)
EP 14805041 A 20140519; JP 2014063200 W 20140519; JP 2015519793 A 20140519; US 201414894127 A 20140519